Buddleia Davidii is a non-native species introduced to the UK in the 19th century from China to attract insects. These insects are attracted to the plants sweet nectar, hence the name butterfly bush.

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It has been classified as an invasive species in a number of countries and as a noxious weed in some American states. In the UK it dominates our rail networks causing huge damage to infrastructure networks.

 

This has an impact in the residential and commercial sectors as seeds spread and populate. A strategy has recently been adopted by Network rail to tackle the spread of Buddleia.

 

Whilst not currently classified as a Schedule nine invasive species it is expected to be added to the list of controls.